In my current position I oversee the following activities for three randomized controlled trials. One USAID funded RCT in Bangladesh (PI George) of a water sanitation and hygiene (WASH) intervention, an NIH funded RCT of participatory interventions to reduce arsenic exposure in American Indian Communities (R01 Grant: PI George and Navas-Acien), and a USAID funded RCT in the Democratic Republic of the Congo of Baby WASH interventions (PI George).Database Design and Development • Creating codes for study questions, creating access database for demographic and clinical questions• Barcode system for participants and biospecimen tracking• Bio-specimen tracking databases• Validation checks for access database using VB programming code• Trainings on study protocols and the use of study database for field teamsDatabase Management• Quality control protocols for data management• Troubleshooting database throughout study period and resolving queries• Tracking barcode system for bio-specimens • Data cleaning for all study data collected, sending queries to field team when neededData Analysis and Manuscript Preparation: • Conducting quantitative data analysis using SPSS and SAS (Regression models and descriptive statistics)• Preparing lead author manuscripts for publication

At icddr,b I developed and managed data collection systems for all studies for the Initiative for Noncommunicable Diseases. This included relational databases, quality control procedures, standard operating procedures (SOP) for data management, study questionnaires, code books, and data analysis tools. This included the following studies:• Bangladesh Risk of Acute Vascular Events (BRAVE): A case-control study of 10,000 acute vascular event case and 10,000 controls examining environmental, genetic, lifestyle and biochemical factors for Acute Myocardial Infarction. I oversaw all data collection and management.• Control of Blood Pressure and Risk Attenuation- Bangladesh, Pakistan, Sri Lanka, Feasibility (COBRA-BPS) study: This is a multi-country cluster randomized controlled trial of integrated primary care strategies to reduce high blood pressure. These findings will inform policies that will be integrated into the primary care infrastructure in rural communities in Bangladesh, Pakistan, and Sri Lanka. My role was managing entry of this large dataset in REDCap and generating maps using QGIS software with GPS coordinates to visualize field cluster distribution.• Establishing GeoHealth Hub: An international consortium of environmental health researchers investigating the health effects of water pollution, air pollution, and climate change in Bangladesh. My role was to manage this dataset and download data collected by a MicroPEM PM 2.5 machine from the field for indoor air pollution monitoring. • Hypertension Study: • Chronic Obstructive Pulmonary Disease (COPD) Study: • Indoor air pollution (IAP) study: My role was to manage study data and supervise the data management team.

Summary: I supervised data management for the Columbia University Arsenic & Health Research Office in Bangladesh. In this role I developed and managed the relational database system for a cohort study of 30,000 cohort study, and all sub-studies. This involved designing study databases, including data entry validations, generating eligible participant lists, tracking study bio-specimens, uploading data, data cleaning, and coordinating the activities of the data management team of 10 informatics officers, 4 data monitoring officers, and a study- pharmacist at the Columbia University Dhaka Office. This included the following studies:• The Health Effects of Arsenic Longitudinal Study (HEALS): This is an ongoing prospective cohort study in Bangladesh of 30,000 individuals. The data collected from this study has resulted in over 22 publications. My role was to manage all study data collected.• Bangladesh Vitamin E and Selenium Trial (BEST): The BEST trial is a 2 × 2 factorial design, double-blind, randomized controlled trial of 7000 adults with arsenical skin lesions evaluating the efficacy of supplementation with alpha-tocopherol (100 mg daily) and L-selenomethionine (200 μg daily) on the prevention of non-melanoma skin cancer. My role was to manage this study data and oversee the data management team.• Water Arsenic Exposure and Intellectual Function in 6-Year-Old Children in Bangladesh: • Water Arsenic Exposure and Children’s Intellectual Function in 10 year-old Children in Bangladesh: • Folic Acid and Creatine as Therapeutic Approaches to Lower Blood Arsenic (FACT) Study: The objective of this clinical trial was to determine whether 400 or 800 μg of folic acid and/or creatine supplementation lowered blood arsenic in an arsenic exposed Bangladeshi population. My role was to manage this study data and oversee the data management team.